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Different Interset Rest Intervals During the Nordic Hamstrings Exercise in Young Male Athletes
Benjamin Drury1, Dan Peacock2, Jason Moran3
1Department of Applied Sport Sciences, Hartpury University, Gloucestershire, United Kingdom.
Context:
The Nordic hamstring exercise (NHE) is known to reduce hamstrings injury risk in athletes. To optimize the NHE, it is important to understand how acute resistance-training variables influence its performance.
Objective:
To examine the effects of different interset rest intervals (ISRIs) on force indices during performance of the NHE.
Design:
Crossover study.
Setting:
Laboratory.
Patients Or Other Participants:
Ten well-trained, young, male, team-sport athletes (age = 20.7 ± 2.3 years, height = 179.4 ± 5.5 cm, mass = 83.9 ± 12.4 kg).
Intervention(S):
Participants performed 2 sets of 6 repetitions of the NHE with either a 1- or 3-minute ISRI. All sets were performed using the NordBord.
Main Outcomes Measure(S):
Peak force (newtons), average force (newtons), percentage maintenance, and percentage decline were recorded for both the dominant and nondominant limbs, and interlimb force asymmetries (percentages) were calculated.
Results:
No interactions or main effects (P > .05) were present between conditions or sets for any variables. However, individual repetitions showed reductions (P< .05; effect size range = 0.58-1.28) in peak force from repetition 4 onward.
Conclusions:
Our findings suggest that a 1-minute ISRI was sufficient to maintain force-production qualities and interlimb asymmetries between sets during the NHE in well-trained athletes. Nonetheless, practitioners should be aware of the potentially large decrements in peak force production that may occur within the set.
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